Get the fields field from a fty-type-prod.
(fty-type-prod->fields x) → fields
This is an ordinary field accessor created by defprod.
Function:
(defun fty-type-prod->fields$inline (x) (declare (xargs :guard (fty-type-p x))) (declare (xargs :guard (equal (fty-type-kind x) :prod))) (let ((acl2::__function__ 'fty-type-prod->fields)) (declare (ignorable acl2::__function__)) (mbe :logic (b* ((x (and (equal (fty-type-kind x) :prod) x))) (fty-field-alist-fix (std::da-nth 0 (cdr x)))) :exec (std::da-nth 0 (cdr x)))))
Theorem:
(defthm fty-field-alist-p-of-fty-type-prod->fields (b* ((fields (fty-type-prod->fields$inline x))) (fty-field-alist-p fields)) :rule-classes :rewrite)
Theorem:
(defthm fty-type-prod->fields$inline-of-fty-type-fix-x (equal (fty-type-prod->fields$inline (fty-type-fix x)) (fty-type-prod->fields$inline x)))
Theorem:
(defthm fty-type-prod->fields$inline-fty-type-equiv-congruence-on-x (implies (fty-type-equiv x x-equiv) (equal (fty-type-prod->fields$inline x) (fty-type-prod->fields$inline x-equiv))) :rule-classes :congruence)
Theorem:
(defthm fty-type-prod->fields-when-wrong-kind (implies (not (equal (fty-type-kind x) :prod)) (equal (fty-type-prod->fields x) (fty-field-alist-fix nil))))